Bednar's Aphthae
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Bednar's aphthae are superficial, irregularly oval ulcers that typically occur symmetrically on the hard palate in infants, particularly those who are artificially fed and receive poor care. The condition was first described by Bednar in 1845, though similar cases had been reported earlier by Lelut, Billard, and Valleix.
Encyclopedia entry (1928–1936)
Bednar's aphthae (Bednar, 1845), ulcera teratogygoidea, superficial, irregularly oval-shaped ulcers, usually paired, located symmetrically on the hard palate, on either side of the midline, at points corresponding to the hamulus pterygoideus, sometimes also along the midline, at the sites of Bona's nodules (see Bona's nodules). They develop in infants who are artificially fed and receive poor care, but occasionally also in completely healthy infants. The etiology is attributed to mechanical causes—defects in care (wiping the mouth) and friction of the mucous membrane by the tongue during sucking. Treatment is unnecessary; Bednar's aphthae disappear with improved nutrition. The condition was described before Bednar by Lelut in 1827, Billard in 1833, and Valleix in 1838.
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“Bednar's Aphthae.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/bednars-aphthae/